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PRODID:-//Discrete Mathematics Group - ECPv6.15.20//NONSGML v1.0//EN
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X-ORIGINAL-URL:https://dimag.ibs.re.kr
X-WR-CALDESC:Events for Discrete Mathematics Group
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TZID:Asia/Seoul
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:KST
DTSTART:20240101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20251226T163000
DTEND;TZID=Asia/Seoul:20251226T173000
DTSTAMP:20260416T090825
CREATED:20251002T131231Z
LAST-MODIFIED:20251127T040716Z
UID:11684-1766766600-1766770200@dimag.ibs.re.kr
SUMMARY:Donggyu Kim (김동규)\, Grassmann-Plücker functions for orthogonal matroids
DESCRIPTION:We present a new cryptomorphic definition of orthogonal matroids with coefficients using Grassmann-Plücker functions. The equivalence is motivated by Cayley’s identities expressing principal and almost-principal minors of a skew-symmetric matrix in terms of its pfaffians. As a corollary of the new cryptomorphism\, we deduce that each component of the orthogonal Grassmannian is parameterized by certain part of the Plücker coordinates. \nThis is joint work with Changxin Ding.
URL:https://dimag.ibs.re.kr/event/2025-12-26/
LOCATION:Room B332\, IBS (기초과학연구원)
CATEGORIES:Discrete Math Seminar
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